Multigrade® head with dichroic color filter for use with variable gradation paper without changing the exposure time. Scale dial indirectly illuminated with index numbers in half steps from 0 (extra soft) to 5 (extra hard) for stepless contrast control. White-light lever for simultaneous swinging in or out of filters, with control light. Continuously adjustable density aperture up to 60 densitometric densities (= two aperture settings). Best possible light distribution due to special diffusor plate and exchangeable double condensor system. UV and IR filters. Filter drawer.